Several riders carry auxiliary gas in traditional red gas cans and strap those to their bikes. It is an old school, tried and true method of extending range.
The trouble with these systems is their being exposed when/if the rider crashes the bike. The $10 red gas can isn't built to take impact and it could easily be punctured in a crash causing you to lose fuel, or worse. Also, the gas cans are typically carried in sub-optimal locations. High up on a tail rack behind the rear wheel which adds instability, particularly noticeable when the road is slippery and the bike is slithering around.
The Camel Tank tucks that extra 1.8 gallons between the frame of the bike and the pannier rack on the right side of the bike, offsetting the weight of the silencer. The tank requires no additional fuel pump and gas flow is seamless. The location frees up the tail rack for light items. It does not have to be filled up all the time - just fill it when you need the extra range. I think it is a safe and sensible accessory with owners reporting on ADVRider.com and other sites an increase in range to around 250 miles or more depending on variables like speed and terrain.
I now carry and install this item, and can order them if I'm out of stock when you need one.
The version pictured below is designed to be compatible with Touratech Zega and Zega Pro (not the 41L special system), and Giant Loop Great Basin, Giant Loop Siskyou without panniers.
The version below only fits the BMW pannier system designed for the F800GS/F700GS
The version pictured below works with Hepco Becker, Holan, SW Motech, Mas tech, and Wolfman pannier systems.
Camel Tanks Field Tested
Two of us got Camel Tanks from Alyxmoto a day or two before we headed for Prudhoe Bay. The installation went smoothly, and a test showed the tank supplied fuel as advertised. So, we headed off on our trip.
We didn't bother to check what the fuel range would be on the ride up to Fairbanks as the purpose of the tank was to get us to both Coldfoot, which is half way up the Dalton Highway, and then on to Deadhorse an equal distance farther north. Besides, stopping for gas with everyone else is a social thing and, given the weather conditions, a welcome break.
An F800GS, running around 50 mph and up to 60 mph can achieve a 60 mpg average according to the trip computer. We left Fairbanks fully fueled for the 260 mile run and religiously kept the speed no higher than 50 mph – for the most part. I think the mpg average indicated was 62 mpg when we got to Coldfoot. I should note the dirt sections of that run were hideously muddy and slick so 30 to 35 mph was about as fast as any of us dared to ride for about half the distance.
By the time we got into Coldfoot, we each had just gotten into the fuel gauge indicating slightly less than half a tank remaining. I normally see that as about 70 to 80 miles left before I really get fuel worried.
This result held steady for the rest of the trip up and down the Dalton Highway though as our speed increased, quite dramatically in some areas, the range decreased. Regardless, I simply quit worrying about having enough fuel.
The tank is durable, functions as advertised, protects the fuel supply if the bike is dropped (unlike one of those popular red gas cans we typically carry) and given the need to recover development costs is priced appropriately.
Best accessory on my F800GS, and it cleans up well too.